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Finding the Fourth Proportional to 12,762.66, 19,146.05 and 4,445.08

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Solution

The fourth proportional to 12,762.66, 19,146.05 and 4,445.08 is: 6,668.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762.66 : 19,146.05 = 4,445.08 : x
  2. Step 2: Convert to fraction form
    12,762.66/19,146.05 = 4,445.08/x
  3. Step 3: Cross multiply
    12,762.66x = 19,146.05 × 4,445.08
  4. Step 4: Simplify right side
    12,762.66x = 85,105,658.01
  5. Step 5: Solve for x
    x = 85,105,658.01/12,762.66
  6. Step 6: Final answer
    x = 6,668.33

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.